Chapter 24.—56. Petilianus said: "But you will answer that you abide by the same declaration, He that is once washed needeth not save to wash his feet. 2054
Now the once is once that has authority, once that is confirmed by the truth."

57. Augustin answered: Baptism in the name of the Father and of the Son and of the Holy Ghost 2055
has Christ for its authority, not any man, whoever he may be; and Christ is the truth, not any man.